<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <form>
    用户名：<input type="text">
    密码：<input type="password">
    <input type="submit"  value="注册" onclick="window.open('login.html')">
    </form>
</body>
</html>